optimistic

US /ˌɑːptɪˈmɪstɪk/

UK /ˌɒptɪˈmɪstɪk/

B2 trung cao cấp
adj.tính từlạc quan
Despite having failed the test, he is optimistic that he will still pass the class
adj.tính từtự tin
The team is optimistic about their chances of winning the championship.

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